From: notaz Date: Sat, 17 Sep 2022 20:18:47 +0000 (+0300) Subject: cdrom: allow to interrupt initial scan sequence X-Git-Tag: r24~300 X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=871bedc6237736d01d3e0fd83e0998810b8302ab;p=pcsx_rearmed.git cdrom: allow to interrupt initial scan sequence probably wrong but ohwell... --- diff --git a/libpcsxcore/cdrom.c b/libpcsxcore/cdrom.c index e01d7deb..f168a0fc 100644 --- a/libpcsxcore/cdrom.c +++ b/libpcsxcore/cdrom.c @@ -308,6 +308,8 @@ static void setIrq(int log_cmd) // (yes it's slow, but you probably don't want to modify it) void cdrLidSeekInterrupt(void) { + CDR_LOG_I("%u %s cdr.DriveState=%d\n", psxRegs.cycle, __func__, cdr.DriveState); + switch (cdr.DriveState) { default: case DRIVESTATE_STANDBY: @@ -369,10 +371,14 @@ void cdrLidSeekInterrupt(void) break; case DRIVESTATE_PREPARE_CD: - cdr.StatP |= STATUS_SEEK; - - cdr.DriveState = DRIVESTATE_STANDBY; - CDRLID_INT(cdReadTime * 26); + if (cdr.StatP & STATUS_SEEK) { + SetPlaySeekRead(cdr.StatP, 0); + cdr.DriveState = DRIVESTATE_STANDBY; + } + else { + SetPlaySeekRead(cdr.StatP, STATUS_SEEK); + CDRLID_INT(cdReadTime * 26); + } break; } } @@ -687,9 +693,18 @@ void cdrInterrupt(void) { } switch (cdr.DriveState) { + case DRIVESTATE_PREPARE_CD: + if (Cmd > 2) { + // Syphon filter 2 expects commands to work shortly after it sees + // STATUS_ROTATING, so give up trying to emulate the startup seq + cdr.DriveState = DRIVESTATE_STANDBY; + cdr.StatP &= ~STATUS_SEEK; + psxRegs.interrupt &= ~(1 << PSXINT_CDRLID); + break; + } + // fallthrough case DRIVESTATE_LID_OPEN: case DRIVESTATE_RESCAN_CD: - case DRIVESTATE_PREPARE_CD: // no disk or busy with the initial scan, allowed cmds are limited not_ready = CMD_WHILE_NOT_READY; break; @@ -1564,9 +1579,15 @@ void cdrReset() { cdr.Channel = 1; cdr.Reg2 = 0x1f; cdr.Stat = NoIntr; - cdr.DriveState = DRIVESTATE_STANDBY; - cdr.StatP = STATUS_ROTATING; cdr.FifoOffset = DATA_SIZE; // fifo empty + if (CdromId[0] == '\0') { + cdr.DriveState = DRIVESTATE_STOPPED; + cdr.StatP = 0; + } + else { + cdr.DriveState = DRIVESTATE_STANDBY; + cdr.StatP = STATUS_ROTATING; + } // BIOS player - default values cdr.AttenuatorLeftToLeft = 0x80;